Agricultural soil-working machine.



H. G. WAITE.

AGRICULTURAL SOIL WORKING MACHINE.

APPLICATION rum) JAN. 31, 1914.

3 SHEETS-SHEET 1.

I Di

NE NORRIS PETERS co., PHOTOJJTHCL. WASHING VON. D. F

H. G. WAITE.

AGRICULTURAL SOIL WORKING MACHINE.

APPLICATION FILED JAN.31,1914.

1,1 20,255, Patented Dec. 8, 1914.

3 SHEETS-SHBET 2 THE NORRIS PETERS co PHOI'O Lr'rnov. WASH/NC; TON. I) CH. G. WAITE.

AGRICULTURAL SOIL WORKING MACHINE.

APPLICATION FILED JAN.31, 1914. 1 1 20,255. Patented Dec. 8, 1914.

3 SHEETS-SHEET 3.

'HE NORRIS PETERS (20.. PHOTO-LITHO. WASHING VON n HARRY C. WAITE, 0FLEWISTOWN, MONTANA.

AGRICULTURAL SOIL-WORKING MACHINE.

Specification of Letters Patent.

Patented Dec. 8, 1914.

Application filed January 31. 1914. Serial No. 815,740.

To all whom it may concern:

- Be it known that I, HARRY G. \VArrn, a citizen of the United States,residing at Lewistown, in the county of Fergus and State of Montana,have invented a new and useful Improvement in Agricultural Soil- WorkingMachines, of which the following is a specification.

The object of my invention is to provide an agricultural machine tooperate, by moving on the land, to thoroughly disintegrate or pulverizethe soil.

My invention is illustrated, in its preferred embodiment, in theaccompanying drawings, in which Figure 1 is a view of the machine inside elevation; Fig. 2 is a section on line 2, Fig.

1; Fig. 3 is a plan view of the machine, with a portion of the rollerbroken away; Fig. 1 is a broken plan view, partly sectional, of the diskhorrow forming the front end of the machine; Fig. 5 is an enlargedbroken view in sectional elevation illustrating the flex ible linkconnection between the crank-shaft and a tooth-carrying bar, as shown inFig. 2, and Fig. 6 is an enlarged broken view in sectional elevationshowing the preferred manner of connecting the flexibly-suspendedtoothed-bars by a cable.

The principal feature of my machine is the so-called pulverizer forworking the soil to disintegrate it; and its preferred construction, inthe matter of details, is that illustrated and described as follows:

The parts are supported on a frame 7 of general rectangular shape, whichmay be best constructed of channel-bars. Rails 8 and 9 extending,respectively, across the rear and front ends of the frame have aliningbearings rising centrally from them for the ends of a rotary shaft 14.In bearings 10 extending inwardly from each side-rail of the frame, arejournaled rotary shafts 11, 11, carrying sheaves 12 to aline,transversely of the frame, with sheaves 13 on the central shaft 14,which carries on its forward end a handle 15 and is there provided witha pawl-and-ratchet device 16. On each transverse set of the sheaves 12,13 is suspended an angle-bar 17 by cables 18 attached to it near itsopposite ends, passing thence over the opposite sheaves 12 and beingfastened at the inner ends to the sheave 13 to adapt them to be wound orunwound thereonin re spectively opposite directions for raising andlowering the suspended bar. Six of these bars are shown, and eachcarries a plurality of depending teeth 19, uniformly spaced apart. Theflexibly-suspended teeth are for penetrating and stirring the soil topulverize it, the depth of their penetration being regulated by turningthe shaft 14 to let out or wind thereon the cables 18. These bars 17 aretied together in their spaced relation lengthwise of the frame, at clips17 thereon (Fig. (3), by cables 20 extending from posts 21 dependingfrom the rail 9 near its ends, and connected at their rear ends with theclips on the hinder-most bar 17.

For stirring the soil by moving the frame 7 over it, the teeth 19 arevibrated in the soil by reciprocating the bars 17. This action isproduced by a crank-shaft 22 journaled in bearings 23 depending from asiderail of the frame and having the cranks, one

for each bar 17, extending at different angles and connected withrespective bars through the medium of divided flexible links 24. Eachlink has its inner section pivotally fastened, as at 25, to a differentbar, and has a universal-joint 26 in its outer section, which isconnected with a crank of the shaft 22; and the link contains anintermediate thrust-taking section composed of a tubular housing 27forming a continuation of its inner section and on which works the outerlink-section having confined about it in the housing a spiral spring 28and outside of the same, against the end of the housing, a similarspring 28'.

Harrow-disks 29 are attached to the forward end of the frame 7,centrally thereof. The disks are shown to be supported, in sets, on twoalining shafts to. 30 journaled in the depending arms 31 of generally ushaped frames having their alining horizontal arms 32 each pivotallyconnected at 33 with a relatively-wide channel-bar 34: surmounting them.The two sets of disks 29 are thus flexibly connected together to adaptthem to be swung to various angles on their pivots. A tongue 35 isrigidly connected with the bar 34 centrally between the framearms 32 andserves for connecting the machine with a suitable motive power, whichmay be a tractor-engine; and it is shown to be connected by yoke-arms 36with the pivot-rods 33. A plate 37 (Fig. 41) containing slots 38,bridges, underneath the bar 34:, the space between theadjacent ends ofthe framearms 32, and is bolted to the latter through its slots. On thetongue is supported a segmental rack 39 for cooperation therewith of aspring pawl it) on an operating lever 41 fulcrumed between its ends onthe rack and having its lower end connected by a link-rod l2 with theplate 37, at its center. By manipulating the lever, the U-shaped framesmay be adjusted to extend the shafts 30 and harrow-disks to differentdesired angles relative to the front end of the pulverizing machine.This is, generally-speaking, a common form of adjustment for harrows,however, and the construction is not claimed herein as a feature of mypresent invention.

The frame 7 is carried at its rear end on the axis of a roller d3, shownin the form of a hollow cylinder to contain a weighting medium, such assand or, and preferably, water, with which it is adapted to be filledfor loading the roller to any desired extent for its soil-rollingpurpose. The roller carries on one end of its axis a sprocket 44, whichis connected by a chain 45 with a sprocket 46 on a stub-shaft 47journaled in bearings depending from the frame 7 and carrying amiter-gear 48 to mesh with a similar gear 49 on the adjacent end of thecrank-shaft.

In the travel of the machine over land to be worked, the disks 29 harrowthe soil, the teeth 19 thereupon pulverize it, and the roller 43 finallyrolls it. The accompanying rotation of the crank-shaft vibrates the bars17 thereby actuating the teeth thereon crosswise of the path of movementof the frame to stir the soil penetrated by them; and this stirringaction is enhanced by the swirlingmotion imparted to the bars and theirdepending teeth by reason of the flexible suspension of the bars,whereby the soil is thoroughly disintegrated or pulverized.

The sets of teeth 19 are, as will be observed, independent of eachother, so that any tooth or teeth in a set may ride over obstructionswithout straining the machine or affecting any other tooth; and by theset of.

the cranks at different angles, the resultant different working of thesuccessive sets of the teeth still further enhances their pulverizingaction.

I realize that considerable variation is possible in the details ofconstruction thus specifically shown and described, and I do not intendby illustrating a single, specific or preferred embodiment of myinvention to be limited thereto; my intention being in the appendedclaims to claim protection upon all the novelty there may be in myinvention as broadly as the state of the art will permit. That I claimas new and desire to secure by Letters Patent is- 1. Asoil-disintegrating agricultural machine comprising a frame, a barflexibly suspended on the frame to extend crosswise thereof and carryingpendent teeth to penetrate the soil, a crank-shaftconnected with saidbar, means for driving the crank-shaft, and resilient connecting meansbetween said bar and crank-shaft having a yielding connection with thecrank-shaft.

2. A soil-disintegrating agricultural machine comprising a frame, a barflexibly suspended on the frame to extend crosswise thereof and carryingpendent teeth to penetrate the soil, a crank-shaft, a link pivotallyconnected at one. end with the bar and having av universal-jointconnection at its opposite end with the crank-shaft and an intermediatespring-pressed yielding section, and means for driving the crankshaft.

3. A soil-disintegrating agricultural machine comprising, incombination, a frame, a series of bars flexibly. suspended on the frameto extend crosswise thereof, teeth depending from the bars to penetratethe soil, a crankshaft with cranks extending at dif ferent angles,yielding connections between the cranks and bars', and means for drivingthe crank-shaft.

4. A soil-disintegrating agricultural 'machine comprising, incombination, a frame, flexible suspending means depending at intervalsalong. the frame near each side and connected together and tothe framelength wise thereof, bars extending transversely of the frame andsecured to said suspending means, teeth depending from the bars topenetrate the soil, a crank-shaft having its cranks connected with thebars, and means HARRY G. WAITE. In presence of- NELLIE B. DEARBORN,DAISEY THonsn @opiea at this patent maybe obtained for five cents each,by addressing the Oemmisstqner of lPatents,

Washington," D. G.

